Princeton Researchers Invented Smallest Quantum Dot Laser

January 19, 2015 6:46 AM

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Scientists at Princeton University invent the smallest laser of the world. The new laser is the perfect demonstration of the basic interaction of light and moving electrons. It is similar to a single rice grain in terms of size.

The laser is powered by a single electron. Hence, it requires electricity of one-billionth that is equal to the electricity consumption of a hair dryer.